CN209181806U - A kind of environmental monitoring system - Google Patents

Abstract

The utility model discloses a kind of environmental monitoring systems.Data acquisition circuit is acquired the environmental parameter monitored by monitoring environmental data component, current location is obtained by GPS module, component transmits data to server by wireless communication again, to realize the wireless transmission of environmental monitoring data and geographic position data, efficiently solve in the prior art difficult wiring, it is difficult in maintenance, spend human and material resources, can not ensure the technical issues of accuracy of monitoring result, realize convenient for the technical effect of arrangement, simple, the monitoring result that saves human and material resources, ensures the accuracy of maintenance.

Description

A kind of environmental monitoring system

Technical field

The utility model relates to environmental technology field more particularly to a kind of environmental monitoring systems.

Background technique

With the development and progress of society, country increasingly payes attention to environmental monitoring, every on-line environmental monitoring policy It puts into effect in succession.And the on-line monitoring currently existing scheme of fixed area is connected using cable network, program difficult wiring, maintenance Difficulty is spent human and material resources.Moreover, often someone checks to escape, and the position of mobile environment monitoring device privately, thus Affect the accuracy of monitoring result.

Utility model content

The utility model by providing a kind of environmental monitoring system, solve in the prior art difficult wiring, it is difficult in maintenance, It spends human and material resources, can not ensure the technical issues of accuracy of monitoring result, realize convenient for arrangement, maintenance is simple, saves The technical effect of manpower and material resources, the accuracy of guarantee monitoring result.

The utility model provides a kind of environmental monitoring system, comprising: monitoring environmental data component, data acquisition circuit, GPS module, wireless communication unit and server；The signal output end of the monitoring environmental data component and data acquisition electricity The signal input part on road communicates to connect；The GPS module and the data acquisition circuit two-way communication link；The data acquisition The signal input part of the signal output end of circuit and the wireless communication unit communicates to connect；The signal of the wireless communication unit The signal input part of output end and the server communicates to connect.

Further, the data acquisition circuit includes: single-chip microcontroller, download interface module, the first crystal oscillator, the 27th electricity Appearance, the 28th capacitor, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the first signal convert core Piece, second signal conversion chip, first interface terminal, second interface terminal, first capacitor, the second capacitor, third capacitor, the 4th Capacitor, the 5th capacitor, the 25th capacitor, the 6th resistance, the 7th resistance, data transmit-receive chip, the second crystal oscillator, the 22nd electricity Hold, the 23rd capacitor, antenna terminal；First power input pin of the download interface module, second source input pin Connect power supply；First grounding pin of the download interface module, the second grounding pin ground connection；The reset of the download interface module Pin is connect with the downloader reset pin of the single-chip microcontroller；The reset pin of the download interface module is also electric with described first The first end of resistance connects, the second termination power of the first resistor；First signal input pin of the download interface module It is connect with the downloading input pin of the single-chip microcontroller；First signal input pin of the download interface module is also with described second The first end of resistance connects, the second termination power of the second resistance；The mode selection pin of the download interface module with The mode selection pin of the downloader of the single-chip microcontroller connects；The mode selection pin of the download interface module is also with described The first end of three resistance connects, the second termination power of the 3rd resistor；The clock input pin of the download interface module It is connect with the downloading clock pins of the single-chip microcontroller；Under the data output pins and the single-chip microcontroller of the download interface module Carry output pin connection；The data output pins of the download interface module are also connect with the first end of the 4th resistance；Institute State the second termination power of the 4th resistance；The reset pin of the download interface module and the downloading reset pin of the single-chip microcontroller Connection；The reset pin of the download interface module is also connect with the first end of the 5th resistance；The of 5th resistance Two ends ground connection；The first end of first crystal oscillator is connect with the crystal oscillator input pin of the single-chip microcontroller；The of first crystal oscillator One end is also connect with the first end of the 27th capacitor；The second end of 27th capacitor is grounded；Described first is brilliant The second end of vibration is connect with the crystal oscillator output pin of the single-chip microcontroller；The second end of first crystal oscillator is also with the described 28th The first end of capacitor connects；The second end of 28th capacitor is grounded；The first end of the first capacitor and described the One capacitor of channel of one signal conversion chip inputs positive foot connection；The second end of the first capacitor is grounded；Second capacitor The power supply of first end and the first signal conversion chip export positive foot and connect, the second end of second capacitor is grounded；Institute It states the first end of third capacitor and one capacitor of channel of the first signal conversion chip inputs negative foot and connect, the third capacitor Two capacitor of channel of second end and the first signal conversion chip input negative foot and connect；The first end of 4th capacitor with The power supply of the first signal conversion chip exports negative foot connection, the second end ground connection of the 4th capacitor；5th capacitor First end connect with the power input pin of the first signal conversion chip；The first end of 5th capacitor also connects electricity Source, the second end ground connection of the 5th capacitor；The first grounding pin, the second grounding pin of the first signal conversion chip connect Ground；The signal output pin of the first signal conversion chip is connect with the serial ports input pin of the single-chip microcontroller；Described first The signal input pin of signal conversion chip is connect with the serial ports input pin of the single-chip microcontroller；The first signal conversion chip Signal input pin is connect with the serial ports input pin of the single-chip microcontroller, the signal output pin of the first signal conversion chip It is connect with the serial ports output pin of the single-chip microcontroller, the signal input pin and the single-chip microcontroller of the first signal conversion chip The connection of signal input pin, the signal output pin of the signal output pin of the first signal conversion chip and the single-chip microcontroller connects It connects；The chip select pin of the second signal conversion chip is connect with the universal input output pin of the single-chip microcontroller；Described second The mode selection pin of signal conversion chip is also connect with the universal input output pin of the single-chip microcontroller；The second signal turns The first signal output pin for changing chip is connect with the first signal input and output pin of the first interface terminal；Described second The second signal output pin of signal conversion chip is connect with the second signal input and output pin of the first interface terminal；Institute The the first signal input and output pin for stating second signal conversion chip is connect with the first end of the 7th resistance；7th electricity The second end of resistance is connect with the second signal input and output pin of the second signal conversion chip；The second signal converts core The second signal input and output pin of piece is also connect with the first end of the 6th resistance；Second termination of the 6th resistance Ground；The first end of 25th capacitor is connect with the power input pin of the second signal conversion chip, and described second The second end of 15 capacitors is grounded；The grounding pin of the first interface terminal is grounded；The power supply of the first interface terminal is defeated Enter pin and connects power supply；The channel two of first output pin of the second interface terminal and the second signal conversion chip exports Pin connection；Two input pin of channel of second input pin of the second interface terminal and the second signal conversion chip Connection；The grounding pin of the second interface terminal is grounded；The power input pin of the second interface terminal connects power supply；It is described The timing pin of data transmit-receive chip is connect with two clock pins of Serial Peripheral Interface (SPI) channel of the single-chip microcontroller, and the data are received The SPI output pin of hair chip is connect with two output pin of Serial Peripheral Interface (SPI) channel of the single-chip microcontroller, the data transmit-receive The SPI input pin of chip is connect with two input pin of Serial Peripheral Interface (SPI) channel of the single-chip microcontroller, the data transmit-receive core Piece SPI selects pin to select pin to connect with the Serial Peripheral Interface (SPI) channel two of the single-chip microcontroller；The data transmit-receive chip Power input pin connects power supply, the grounding pin ground connection of the data transmit-receive chip；The first end of second crystal oscillator with it is described The crystal oscillator input pin of data transmit-receive chip connects；The first end of second crystal oscillator also with the 22nd capacitor first End connection, the second end of second crystal oscillator are connect with the crystal oscillator output pin of the data transmit-receive chip；Second crystal oscillator Second end also connect with the first end of the 23rd capacitor；The second end of 22nd capacitor is grounded；Described The second end of 23 capacitors is grounded；The antenna terminal connects antenna.

Further, the data acquisition circuit further include: the first power supply chip, second source chip, battery management core Piece, battery interface terminal, charging interface terminal, switch interface terminal, the 6th capacitor, the 7th capacitor, the 8th capacitor, the 9th electricity Appearance, the tenth capacitor, the 11st capacitor, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, the 15th capacitor, the 16th electricity Appearance, the 17th capacitor, the 18th capacitor, the 19th capacitor, the 20th capacitor, the 21st capacitor, the 8th resistance, the 9th electricity Resistance, the tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance, first diode, the two or two pole Pipe, third diode, filter inductance；The power input pin of the second source chip and the first end of the twelfth resistor The power supply of connection, the second termination second source chip of the twelfth resistor enables pin；The second source chip Power supply output pin connect with the first end of the filter inductance；The first end of 17th capacitor and the first power supply core The power output end of piece connects, the second end ground connection of the 17th capacitor；The first end of 18th capacitor and described the The power output end of one power supply chip connects, the second end ground connection of the 18th capacitor；The first end of 19th capacitor It is connect with the power output end of first power supply chip, the second end ground connection of the 19th capacitor；20th capacitor First end connect with the power input of first power supply chip, the second end of the 20th capacitor ground connection；Described The first end of 21 capacitors is connect with the power input of first power supply chip, the second end of the 21st capacitor Ground connection；The charging input pin of the battery interface terminal is connect with the battery input pin of the charging interface terminal, described The battery input pin of battery interface terminal is also connect with the first end of the switch of the switch interface terminal；The battery interface The grounding pin of terminal is grounded；The grounding pin of the charging interface terminal is grounded；The first end of 6th capacitor with it is described The second end of the switch of switch interface terminal connects；The first end of 6th capacitor also connects with the first end of the 8th resistance It connects, the first end of the 6th capacitor is also connect with the power input pin of the battery management chip；6th capacitor Second end ground connection；The second end of 8th resistance is connect with the power ground pin of the battery management chip, the 8th electricity The second end of resistance also with the first diode anode connect, the second end of the 8th resistance also with the 7th capacitor First end connection；The second end of 7th capacitor is grounded；The cathode of the first diode is negative with second diode Pole connection；The anode of second diode is connect with the first end of the 9th resistance；Second termination of the 9th resistance Power supply；The second end of 9th resistance is also connect with the first end of the 8th capacitor, the second termination of the 8th capacitor Ground；First end, the first end of the tenth resistance, the tenth of the power supply output pin of the battery management chip and the 9th capacitor The first end of one capacitor, the 12nd capacitor positive, described second source chip power input pin connection；9th electricity The second end of appearance is grounded；The second end of tenth resistance is connect with the first end of the tenth capacitor, the tenth capacitor Second end ground connection；The second end of tenth resistance is also connect with the first end of the eleventh resistor, the eleventh resistor Second end ground connection；The second end of 11st capacitor is grounded；The cathode of 12nd capacitor is grounded；13rd electricity The first end of resistance is grounded, and the second end of the thirteenth resistor is connect with the first end of the 14th resistance, and the described 14th The second end of resistance is connect with the second end of the filter inductance；The first end of 13rd capacitor and the 14th resistance Second end connection, the second end of the 13rd capacitor is arranged pin with the partial pressure of the second source chip and connect；It is described Third diode anode with the input of the second source chip pin connect, the cathode of the third diode with it is described The first end of filter inductance connects；The first end of 14th capacitor is connect with the second end of the filter inductance, and described The second end of 14 capacitors is connect with the anode of the third diode；The first end and the described 14th of 15th capacitor The second end of resistance connects, and the second end of the 15th capacitor is connect with the second end of the 14th capacitor；Described tenth The first end of six capacitors is connect with the first end of the 15th capacitor, the second end and the described 15th of the 16th capacitor The second end of capacitor connects.

Further, the wireless communication unit is LORA communication module.

Further, the monitoring environmental data component be at least it is following any one:

Dust monitoring component, PM2.5 monitoring component, PM10 monitoring component, TSP monitoring component, temperature monitoring component, humidity Monitoring component, air monitoring component, wind direction monitoring component and/or polluted gas monitoring component.

The one or more technical solutions provided in the utility model, have at least the following technical effects or advantages:

Data acquisition circuit is acquired the environmental parameter monitored by monitoring environmental data component, passes through GPS module Current location is obtained, then component transmits data to server by wireless communication, to realize environmental monitoring data and ground Manage position data wireless transmission, efficiently solve in the prior art difficult wiring, it is difficult in maintenance, spend human and material resources, can not The technical issues of ensureing the accuracy of monitoring result realizes convenient for arrangement, maintenance is simple, saves human and material resources, ensures monitoring As a result the technical effect of accuracy.

Detailed description of the invention

Fig. 1 is the box connection figure of environmental monitoring system provided by the embodiment of the utility model；

Fig. 2 is the circuit connection diagram of single-chip microcontroller in environmental monitoring system provided by the embodiment of the utility model；

Fig. 3 is the circuit connection diagram of download interface module in environmental monitoring system provided by the embodiment of the utility model；

Fig. 4 is the circuit connection of the first signal conversion chip in environmental monitoring system provided by the embodiment of the utility model Figure；

Fig. 5 is the circuit connection of second signal conversion chip in environmental monitoring system provided by the embodiment of the utility model Figure；

Fig. 6 is the circuit connection diagram of first interface terminal in environmental monitoring system provided by the embodiment of the utility model；

Fig. 7 is the circuit connection diagram of second interface terminal in environmental monitoring system provided by the embodiment of the utility model；

Fig. 8 is the circuit connection diagram of data transmit-receive chip in environmental monitoring system provided by the embodiment of the utility model；

Fig. 9 is the circuit connection diagram of the first power supply chip in environmental monitoring system provided by the embodiment of the utility model；

Figure 10 is battery management chip and second source chip in environmental monitoring system provided by the embodiment of the utility model Circuit connection diagram；

Figure 11 is that the networking of environmental monitoring system provided by the embodiment of the utility model uses schematic diagram.

Specific embodiment

The utility model embodiment solves difficult wiring, dimension in the prior art by providing a kind of environmental monitoring system Shield is difficult, spends human and material resources, can not ensure the technical issues of accuracy of monitoring result, realizes convenient for arrangement, maintenance letter The technical effect of single, the monitoring result that saves human and material resources, ensures accuracy.

The technical scheme in the embodiment of the utility model is to solve the above problems, general thought is as follows:

Data acquisition circuit is acquired the environmental parameter monitored by monitoring environmental data component, passes through GPS module Current location is obtained, then component transmits data to server by wireless communication, to realize environmental monitoring data and ground Manage position data wireless transmission, efficiently solve in the prior art difficult wiring, it is difficult in maintenance, spend human and material resources, can not The technical issues of ensureing the accuracy of monitoring result realizes convenient for arrangement, maintenance is simple, saves human and material resources, ensures monitoring As a result the technical effect of accuracy.

Above-mentioned technical proposal in order to better understand, in conjunction with appended figures and specific embodiments to upper Technical solution is stated to be described in detail.

Referring to Fig. 1, environmental monitoring system provided by the embodiment of the utility model, comprising: monitoring environmental data component, data Acquisition Circuit, GPS module, wireless communication unit and server；The signal output end and data of monitoring environmental data component acquire The signal input part of circuit communicates to connect；GPS module and data acquisition circuit two-way communication link；The signal of data acquisition circuit The communication connection of the signal input part of output end and wireless communication unit；The signal output end of wireless communication unit and the letter of server The communication connection of number input terminal.

Referring to fig. 2, the structure of data acquisition circuit is specifically described in Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, and data are adopted Collector includes: single-chip microcontroller U1, download interface module J TAG, the first crystal oscillator Y1, the 27th capacitor C27, the 28th capacitor C28, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the first signal conversion chip U2, second signal conversion chip U3, first interface terminals P 1, second interface terminals P 3, first capacitor C1, the second capacitor C2, Three capacitor C3, the 4th capacitor C4, the 5th capacitor C5, the 25th capacitor C25, the 6th resistance R6, the 7th resistance R7, data transmit-receive Chip U5, the second crystal oscillator Y2, the 22nd capacitor C22, the 23rd capacitor C23, antenna terminal P2；Download interface module J TAG The first power input pin, second source input pin connect 3.3V power supply；The first grounding pin of download interface module J TAG, Second grounding pin ground connection；The 5th foot downloader reset pin of download interface module J TAG and the downloader of single-chip microcontroller U1 reset Pin NJTRST connection；The 5th foot downloader reset pin of download interface module J TAG also connects with the first end of first resistor R1 It connects, the second termination 3.3V power supply of first resistor R1；The the first signal input pin and single-chip microcontroller U1 of download interface module J TAG The JTDI connection of downloading input pin；The first signal input pin of download interface module J TAG also with second resistance R2 first End connection, the second termination 3.3V power supply of second resistance R2；The model selection of the 7th foot downloader of download interface module J TAG Pin is connect with the mode selection pin JTMS/SWDIO of the downloader of single-chip microcontroller U1；The 7th underfooting of download interface module J TAG The mode selection pin for carrying device is also connect with the first end of 3rd resistor R3, the second termination 3.3V power supply of 3rd resistor R3；Under The octal clock input pin for carrying interface module JTAG is connect with the downloading clock pins JTCK/SWCLK of single-chip microcontroller U1；Downloading The data output pins of the 9th foot downloader of interface module JTAG are connect with the downloading output pin JTDO of single-chip microcontroller U1；Downloading The data output pins of the 9th foot downloader of interface module JTAG are also connect with the first end of the 4th resistance R4；4th resistance R4 Second termination 3.3V power supply；The tenth foot chip reset pin of download interface module J TAG and the downloading reset of single-chip microcontroller U1 are drawn Foot NRST connection；The tenth foot chip reset pin of download interface module J TAG is also connect with the first end of the 5th resistance R5；The The second end of five resistance R5 is grounded；The first end of first crystal oscillator Y1 is connect with the 5th foot crystal oscillator input pin of single-chip microcontroller U1；First The first end of crystal oscillator Y1 is also connect with the first end of the 27th capacitor C27；The second end of 27th capacitor C27 is grounded；The The second end of one crystal oscillator Y1 is connect with the 6th foot crystal oscillator output pin of single-chip microcontroller U1；The second end of first crystal oscillator Y1 is also with second The first end of 18 capacitor C28 connects；The second end of 28th capacitor C28 is grounded；The first end of first capacitor C1 and first One capacitor of channel of signal conversion chip U2 inputs positive foot C1+ connection；The second end of first capacitor C1 is grounded；Second capacitor C2's First end exports positive foot V+ with the power supply of the first signal conversion chip U2 and connect, the second end ground connection of the second capacitor C2；Third electricity Hold the first end of C3 and one capacitor of channel of the first signal conversion chip U2 inputs negative foot C1- and connect, the second of third capacitor C3 It holds and is connect with the negative foot C2- of two capacitor of channel of the first signal conversion chip U2 input；The first end of 4th capacitor C4 and the first letter The power supply of number conversion chip U2 exports negative foot V- connection, and the second end of the 4th capacitor C4 is grounded；The first end of 5th capacitor C5 with The power input pin VCC connection of first signal conversion chip U2；The first end of 5th capacitor C5 also connects 3.3V power supply, the 5th electricity Hold the second end ground connection of C5；The first grounding pin C1-, the second grounding pin GND of first signal conversion chip U2 is grounded；First The 9th channel the foot ROUT2 2TTL signal output pin of signal conversion chip U2 and the 12nd foot serial ports input of single-chip microcontroller U1 are drawn Foot connection；The two TTL signal input pin of the tenth channel foot DIN2 of first signal conversion chip U2 and the 13rd of single-chip microcontroller U1 The connection of foot serial ports input pin；The one TTL signal input pin of the 11st channel foot DIN1 and monolithic of first signal conversion chip U2 The 30th serial ports input pin of machine U1 connects, and one TTL signal of the 12nd foot channel output of the first signal conversion chip U2 is drawn Foot is connect with the 31st foot serial ports output pin of single-chip microcontroller U1, the 13rd foot channel one of the first signal conversion chip U2 232 signal input pins are connect with the 4th foot signal input pin of single-chip microcontroller U1, and the 14th of the first signal conversion chip U2 the One 232 signal output pin of foot channel is connect with the first foot signal output pin of single-chip microcontroller U1；The of second signal conversion chip U3 Two foot chip select pins are connect with the 32nd foot universal input output pin PA11 of single-chip microcontroller U1；Second signal conversion chip U3 Third foot mode selection pin also connect with the 32nd foot universal input output pin PA11 of single-chip microcontroller U1；Second signal The 5th foot GND of conversion chip U3 is grounded, the first signal output pin and first interface terminal of second signal conversion chip U3 The first signal input and output pin A (i.e. the 4th foot, octal, the 12nd foot) connection of P1, for connecing monitoring sensor 485A；The second signal output pin of second signal conversion chip U3 draws with the second signal input and output of first interface terminals P 1 Foot B (i.e. third foot, the 7th foot, the 11st foot) connection, for meeting the 485B of monitoring sensor；Second signal conversion chip U3's 6th foot the first signal input and output pin A is connect with the first end of the 7th resistance R7；The second end and second of 7th resistance R7 The 7th foot second signal input and output pin B connection of signal conversion chip U3；The 7th foot of second signal conversion chip U3 Binary signal input and output pin B is also connect with the first end of the 6th resistance R6；The second end of 6th resistance R6 is grounded；25th The first end of capacitor C25 is connect with the 8th foot power input pin of second signal conversion chip U3, the 25th capacitor C25's Second end ground connection；The grounding pin of first interface terminals P 1 is grounded, the ground wire for external sensor；First interface terminals P 1 Power input pin connects+5V power supply, for the power supply line of external sensor, for powering to sensor.Second interface terminals P 3 The first output pin connect with two output pin of the 7th foot channel of second signal conversion chip U3, for sending instructions to GPS mode；Second input pin of second interface terminals P 3 and the input of octal channel two of second signal conversion chip U3 are drawn Foot connection, for receiving the instruction from GPS module；The grounding pin GND of second interface terminals P 3 is grounded；Second interface terminal The power input pin of P3 connects+5V power supply, for powering to GPS module.The 16th foot SPI timing of data transmit-receive chip U5 is drawn Foot is connect with the two clock pins SPI2_SCK of the 26th foot Serial Peripheral Interface (SPI) channel of single-chip microcontroller U1, data transmit-receive chip U5 The 17th foot SPI output pin and single-chip microcontroller U1 the 20th two output pins of octal Serial Peripheral Interface (SPI) channel/SPI2_ MOS connection, the tenth octal SPI input pin of data transmit-receive chip U5 and the 27th foot Serial Peripheral Interface (SPI) of single-chip microcontroller U1 The of two input pin SPI2_MISO connection of channel, the 19th foot SPI selection pin of data transmit-receive chip U5 and single-chip microcontroller U1 25 foot Serial Peripheral Interface (SPI) channels two select pin SPI2_NSS connection；The 12nd foot of data transmit-receive chip U5, second 13 feet are power input pin, connect 3.3V power supply, the 15th foot, the 23rd foot, the 26th of data transmit-receive chip U5 Foot is grounding pin ground connection；The first end of second crystal oscillator Y2 and the 5th foot crystal oscillator input pin XTA of data transmit-receive chip U5 connect It connects；The first end of second crystal oscillator Y2 is also connect with the first end of the 22nd capacitor C22, the second end and data of the second crystal oscillator Y2 The 6th foot crystal oscillator output pin XTB connection of transceiving chip U5；The second end of second crystal oscillator Y2 is also with the 23rd capacitor C23's First end connection；The second end of 22nd capacitor C22 is grounded；The second end of 23rd capacitor C23 is grounded；Antenna terminal P2 Connect antenna.

Referring to Fig. 9 and Figure 10, the structure of data acquisition circuit is further described, data acquisition circuit further include: First power supply chip U4, it second source chip U7, battery management chip U6, battery interface terminals P 4, charging interface terminals P 5, opens Close Interface Terminal P6, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10, the 11st electricity Hold C11, the 12nd capacitor C12, the 13rd capacitor C13, the 14th capacitor C14, the 15th capacitor C15, the 16th capacitor C16, 17th capacitor C17, the 18th capacitor C18, the 19th capacitor C19, the 20th capacitor C20, the 21st capacitor C21, the 8th Resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, twelfth resistor R12, thirteenth resistor R13, the tenth Four resistance R14, first diode D1, the second diode D2, third diode D3, filter inductance L1；Second source chip U7's Crus secunda VIN power input pin is connect with the first end of twelfth resistor R12, the second termination second of twelfth resistor R12 The 7th pin power supply of power supply chip U7 enables pin；The third foot power supply output pin and filter inductance L1 of second source chip U7 First end connection, the second end of filter inductance L1 exports 5V, circuit given to provide 5V input；The third foot of first power supply chip U4 VIN power input foot connects 5V power input, and the crus secunda OUT of the first power supply chip U4 is power supply output pin, and output 3.3V is whole A circuit provides 3.3V input；The first end of 17th capacitor C17 is connect with the crus secunda of the first power supply chip U4, the 17th electricity Hold the second end ground connection of C17.The first end of 18th capacitor C18 is connect with the crus secunda of the first power supply chip U4, the 18th electricity Hold the second end ground connection of C18.The first end of 19th capacitor C19 is connect with the crus secunda of the first power supply chip U4, the 19th electricity Hold the second end ground connection of C19.The first end of 20th capacitor C20 is connect with the third foot of the first power supply chip U4, the 20th electricity Hold the second end ground connection of C20.The first end of 21st capacitor C21 is connect with the third foot of the first power supply chip U4, and the 20th The second end of one capacitor C21 is grounded.The first foot charging input pin and the 1st of charging interface terminals P 5 of battery interface terminals P 4 Foot battery input pin connection, the first foot battery input pin of battery interface terminals P 4 also with switch interface terminals P 6 the 2nd The first end of foot control connects；The grounding pin of battery interface terminals P 4 is grounded；The grounding pin of charging interface terminals P 5 is grounded； The second end of 1st foot control of the first end and switch interface terminals P 6 of the 6th capacitor C6 is connect；The first end of 6th capacitor C6 It is also connect with the first end of the 8th resistance R8, the first end of the 6th capacitor C6 is also defeated with the 4th foot power supply of battery management chip U6 Enter pin connection；The second end of 6th capacitor C6 is grounded；The second end of 8th resistance R8 and the 3rd foot electricity of battery management chip U6 Source pin connection, the second end of the 8th resistance R8 also with first diode D1 anode connect, the second end of the 8th resistance R8 Also it is connect with the first end of the 7th capacitor C7；The second end of 7th capacitor C7 is grounded；The cathode of first diode D1 and the two or two The cathode of pole pipe D2 connects；The anode of second diode D2 is connect with the first end of the 9th resistance R9；The second of 9th resistance R9 Terminate 3.3V power supply；The second end of 9th resistance R9 is also connect with the first end of the 8th capacitor C8, the second end of the 8th capacitor C8 Ground connection.The of the power supply output pin (i.e. the 1st foot, the 2nd foot, the 5th foot and the 6th foot) of battery management chip U6 and the 9th capacitor C9 One end, the first end of the tenth resistance R10, the first end of the 11st capacitor C11, the 12nd capacitor C12 anode, second source core The 2nd foot power input pin of piece U7 connects；The second end of 9th capacitor C9 is grounded.The second end and the tenth of tenth resistance R10 The first end of capacitor C10 connects, the second end ground connection of the tenth capacitor C10.The second end of tenth resistance R10 also with eleventh resistor The first end of R11 connects, the second end ground connection of eleventh resistor R11.The second end of 11st capacitor C11 is grounded.12nd electricity Hold the cathode ground connection of C12.The first end of thirteenth resistor R13 is grounded, the second end of thirteenth resistor R13 and the 14th resistance The first end of R14 connects, and the second end of the 14th resistance R14 is connect with the second end of filter inductance L1.13rd capacitor C13's First end is connect with the second end of the 14th resistance R14, the second end of the 13rd capacitor C13 and the partial pressure of second source chip U7 Pin FB connection is set.The anode of third diode D3 is connect with the 4th pin of second source chip U7 input ground pin, the The cathode of three diode D3 is connect with the first end of filter inductance L1.The first end of 14th capacitor C14 is with filter inductance L1's Second end connection, the second end of the 14th capacitor C14 are connect with the anode of third diode D3.The first of 15th capacitor C15 End is connect with the second end of the 14th resistance R14, and the second end of the 15th capacitor C15 and the second end of the 14th capacitor C14 connect It connects.The first end of 16th capacitor C16 is connect with the first end of the 15th capacitor C15, the second end of the 16th capacitor C16 and the The second end of 15 capacitor C15 connects.

In the present embodiment, GPS module is using the SKM53 mould produced by work of nature observation and control technology Co., Ltd, Shenzhen Block.TTL signal is converted to 232 signals by the first signal conversion chip U2.Second signal conversion chip U3 is converted to 232 signals 485 signals.Wireless communication unit is LORA communication module.Data transmit-receive chip U5 is LORA data transmit-receive chip.Single-chip microcontroller U1 It is the STM32F103 chip produced by (ST) company, STMicw Electronics.First signal conversion chip U2 is by Xi Baisi company The SP3232 chip of (Sipex Corporation) production.Second signal conversion chip U3 is by Xi Baisi company (SipexCorporation) the SP3485 chip produced.Data transmit-receive chip U5 is the SX1279 produced by Semtech company Chip.First power supply chip U4 is the AS1117-3.3 chip produced by Ai Maisi semiconductor company.Monitoring environmental data component At least it is following any one:

Dust monitoring component, PM2.5 monitoring component, PM10 monitoring component, TSP monitoring component, temperature monitoring component, humidity Monitoring component, air monitoring component, wind direction monitoring component and/or polluted gas monitoring component etc..

What needs to be explained here is that can have multiple data acquisition circuits in the utility model embodiment.These data Acquisition Circuit is distributed on different location, and can send environmental data to data summarization and receive terminal.Pass through data summarization It receives terminal and transmits data to server.Data summarization receives the circuit structure of terminal and the circuit structure of data acquisition circuit Identical, difference is only that GPS receiver end reconfiguration GPRS carries out data transmission, and which is not described herein again.

The working principle of environmental monitoring system provided by the embodiment of the utility model is illustrated:

Referring to Figure 11, after the data that GPS and various monitoring environmental data sensors are first acquired by data acquisition circuit, lead to It crosses LORA communication module and is sent to data summarization reception terminal.Meanwhile the data acquisition circuit has the function of data forwarding, it can The data of other received data acquisition circuits are forwarded, so that data are finally transmitted to data summarization and receive terminal.Number It is received after terminal receives the data sent by LORA communication module according to summarizing, remote monitoring platform is transmitted to by GPRS module. Remote monitoring platform, which can summarize, connects data, and shows on the page, meanwhile, it is capable to show the position of each monitoring point on map It sets.

Although the preferred embodiment of the utility model has been described, once a person skilled in the art knows basic Creative concept, then additional changes and modifications may be made to these embodiments.It is wrapped so the following claims are intended to be interpreted as It includes preferred embodiment and falls into all change and modification of the scope of the utility model.

Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.

Claims (5)

1. a kind of environmental monitoring system characterized by comprising monitoring environmental data component, data acquisition circuit, GPS module, Wireless communication unit and server；The signal output end of the monitoring environmental data component and the signal of the data acquisition circuit Input terminal communication connection；The GPS module and the data acquisition circuit two-way communication link；The letter of the data acquisition circuit The signal input part of number output end and the wireless communication unit communicates to connect；The signal output end of the wireless communication unit with The signal input part of the server communicates to connect.

2. the system as claimed in claim 1, which is characterized in that the data acquisition circuit includes: single-chip microcontroller, download interface mould Block, the first crystal oscillator, the 27th capacitor, the 28th capacitor, first resistor, second resistance, 3rd resistor, the 4th resistance, Five resistance, the first signal conversion chip, second signal conversion chip, first interface terminal, second interface terminal, first capacitor, Second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 25th capacitor, the 6th resistance, the 7th resistance, data transmit-receive core Piece, the second crystal oscillator, the 22nd capacitor, the 23rd capacitor, antenna terminal；First power input of the download interface module Pin, second source input pin connect power supply；First grounding pin of the download interface module, the second grounding pin ground connection； The reset pin of the download interface module is connect with the downloader reset pin of the single-chip microcontroller；The download interface module Reset pin is also connect with the first end of the first resistor, the second termination power of the first resistor；The download interface First signal input pin of module is connect with the downloading input pin of the single-chip microcontroller；First letter of the download interface module Number input pin is also connect with the first end of the second resistance, the second termination power of the second resistance；The downloading connects The mode selection pin of mouth mold block is connect with the mode selection pin of the downloader of the single-chip microcontroller；The download interface module Mode selection pin is also connect with the first end of the 3rd resistor, the second termination power of the 3rd resistor；The downloading The clock input pin of interface module is connect with the downloading clock pins of the single-chip microcontroller；The data of the download interface module are defeated Pin is connect with the downloading output pin of the single-chip microcontroller out；The data output pins of the download interface module are also with described The first end of four resistance connects；Second termination power of the 4th resistance；The reset pin of the download interface module and institute State the downloading reset pin connection of single-chip microcontroller；First end of the reset pin of the download interface module also with the 5th resistance Connection；The second end of 5th resistance is grounded；The first end of first crystal oscillator and the crystal oscillator input pin of the single-chip microcontroller Connection；The first end of first crystal oscillator is also connect with the first end of the 27th capacitor；27th capacitor Second end ground connection；The second end of first crystal oscillator is connect with the crystal oscillator output pin of the single-chip microcontroller；First crystal oscillator Second end is also connect with the first end of the 28th capacitor；The second end of 28th capacitor is grounded；Described The first end of one capacitor inputs positive foot with one capacitor of channel of the first signal conversion chip and connect；The of the first capacitor Two ends ground connection；The power supply of the first end of second capacitor and the first signal conversion chip exports positive foot and connect, and described the The second end of two capacitors is grounded；One capacitor of channel of the first end of the third capacitor and the first signal conversion chip inputs Negative foot connection, the second end of the third capacitor input negative foot with two capacitor of channel of the first signal conversion chip and connect； The power supply of the first end of 4th capacitor and the first signal conversion chip exports negative foot and connect, and the of the 4th capacitor Two ends ground connection；The first end of 5th capacitor is connect with the power input pin of the first signal conversion chip；Described The first end of five capacitors also connects power supply, the second end ground connection of the 5th capacitor；The first of the first signal conversion chip connects Ground pin, the second grounding pin ground connection；The signal output pin of the first signal conversion chip and the serial ports of the single-chip microcontroller Input pin connection；The signal input pin of the first signal conversion chip is connect with the serial ports input pin of the single-chip microcontroller； The signal input pin of the first signal conversion chip is connect with the serial ports input pin of the single-chip microcontroller, first signal The signal output pin of conversion chip is connect with the serial ports output pin of the single-chip microcontroller, the letter of the first signal conversion chip Number input pin is connect with the signal input pin of the single-chip microcontroller, the signal output pin of the first signal conversion chip and institute State the signal output pin connection of single-chip microcontroller；The chip select pin of the second signal conversion chip and the universal input of the single-chip microcontroller Output pin connection；The mode selection pin of the second signal conversion chip also draws with the output of the universal input of the single-chip microcontroller Foot connection；First signal of the first signal output pin of the second signal conversion chip and the first interface terminal inputs Output pin connection；Second letter of the second signal output pin of the second signal conversion chip and the first interface terminal The connection of number input and output pin；First signal input and output pin of the second signal conversion chip and the 7th resistance First end connection；The second end of 7th resistance and the second signal input and output pin of the second signal conversion chip connect It connects；The second signal input and output pin of the second signal conversion chip is also connect with the first end of the 6th resistance；Institute State the second end ground connection of the 6th resistance；The first end of 25th capacitor and the power supply of the second signal conversion chip are defeated Enter pin connection, the second end ground connection of the 25th capacitor；The grounding pin of the first interface terminal is grounded；Described The power input pin of one Interface Terminal connects power supply；First output pin of the second interface terminal and the second signal turn Change two output pin of the channel connection of chip；Second input pin of the second interface terminal and the second signal convert core Two input pin of channel of piece connects；The grounding pin of the second interface terminal is grounded；The power supply of the second interface terminal Input pin connects power supply；The timing pin of the data transmit-receive chip and two clock of Serial Peripheral Interface (SPI) channel of the single-chip microcontroller Pin connection, the SPI output pin of the data transmit-receive chip draw with the output of Serial Peripheral Interface (SPI) channel two of the single-chip microcontroller Foot connection, the SPI input pin of the data transmit-receive chip and two input pin of Serial Peripheral Interface (SPI) channel of the single-chip microcontroller Connection, the data transmit-receive chip SPI selection pin select pin to connect with the Serial Peripheral Interface (SPI) channel two of the single-chip microcontroller； The power input pin of the data transmit-receive chip connects power supply, the grounding pin ground connection of the data transmit-receive chip；Described second The first end of crystal oscillator is connect with the crystal oscillator input pin of the data transmit-receive chip；The first end of second crystal oscillator also with it is described The first end of 22nd capacitor connects, the crystal oscillator output pin of the second end of second crystal oscillator and the data transmit-receive chip Connection；The second end of second crystal oscillator is also connect with the first end of the 23rd capacitor；22nd capacitor Second end ground connection；The second end of 23rd capacitor is grounded；The antenna terminal connects antenna.

3. system as claimed in claim 2, which is characterized in that the data acquisition circuit further include: the first power supply chip, Two power supply chips, battery management chip, battery interface terminal, charging interface terminal, switch interface terminal, the 6th capacitor, the 7th Capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor, the 11st capacitor, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, 15th capacitor, the 16th capacitor, the 17th capacitor, the 18th capacitor, the 19th capacitor, the 20th capacitor, the 21st electricity Appearance, the 8th resistance, the 9th resistance, the tenth resistance, eleventh resistor, twelfth resistor, thirteenth resistor, the 14th resistance, One diode, the second diode, third diode, filter inductance；The power input pin of the second source chip with it is described The first end of twelfth resistor connects, and the power supply of the second termination second source chip of the twelfth resistor is enabled to be drawn Foot；The power supply output pin of the second source chip is connect with the first end of the filter inductance；The of 17th capacitor One end is connect with the power output end of first power supply chip, the second end ground connection of the 17th capacitor；Described 18th The first end of capacitor is connect with the power output end of first power supply chip, the second end ground connection of the 18th capacitor；Institute The first end for stating the 19th capacitor is connect with the power output end of first power supply chip, the second end of the 19th capacitor Ground connection；The first end of 20th capacitor is connect with the power input of first power supply chip, the 20th capacitor Second end ground connection；The first end of 21st capacitor is connect with the power input of first power supply chip, described The second end of 21st capacitor is grounded；The electricity of the charging input pin and the charging interface terminal of the battery interface terminal Pond input pin connection, the battery input pin of the battery interface terminal also with the switch of the switch interface terminal first End connection；The grounding pin of the battery interface terminal is grounded；The grounding pin of the charging interface terminal is grounded；Described 6th The first end of capacitor is connect with the second end of the switch of the switch interface terminal；The first end of 6th capacitor also with it is described The first end of 8th resistance connects, and the first end of the 6th capacitor also connects with the power input pin of the battery management chip It connects；The second end of 6th capacitor is grounded；The second end of 8th resistance and the power ground of the battery management chip are drawn Foot connection, the second end of the 8th resistance are also connect with the anode of the first diode, the second end of the 8th resistance Also it is connect with the first end of the 7th capacitor；The second end of 7th capacitor is grounded；The cathode of the first diode with The cathode of second diode connects；The anode of second diode is connect with the first end of the 9th resistance；It is described Second termination power of the 9th resistance；The second end of 9th resistance is also connect with the first end of the 8th capacitor, described The second end of 8th capacitor is grounded；The first end of the power supply output pin of the battery management chip and the 9th capacitor, the The first end of ten resistance, the first end of the 11st capacitor, the 12nd capacitor positive, described second source chip power input Pin connection；The second end of 9th capacitor is grounded；The second end of tenth resistance and the first end of the tenth capacitor Connection, the second end ground connection of the tenth capacitor；First end of the second end of tenth resistance also with the eleventh resistor Connection, the second end ground connection of the eleventh resistor；The second end of 11st capacitor is grounded；12nd capacitor is born Pole ground connection；The first end of the thirteenth resistor is grounded, and the of the second end of the thirteenth resistor and the 14th resistance One end connection, the second end of the 14th resistance are connect with the second end of the filter inductance；The of 13rd capacitor One end is connect with the second end of the 14th resistance, the second end of the 13rd capacitor and point of the second source chip Pressure setting pin connects；With the input of the second source chip pin is connect the anode of the third diode, and described the The cathode of three diodes is connect with the first end of the filter inductance；The first end of 14th capacitor and the filter inductance Second end connection, the second end of the 14th capacitor connect with the positive of the third diode；15th capacitor First end connect with the second end of the 14th resistance, the second end of the 15th capacitor and the 14th capacitor Second end connection；The first end of 16th capacitor is connect with the first end of the 15th capacitor, the 16th capacitor Second end connect with the second end of the 15th capacitor.

4. the system as claimed in claim 1, which is characterized in that the wireless communication unit is LORA communication module.

5. the system as claimed in claim 1, which is characterized in that the monitoring environmental data component is at least following any one Kind:

Dust monitoring component, PM2.5 monitoring component, PM10 monitoring component, TSP monitoring component, temperature monitoring component, humidity detection Component, air monitoring component, wind direction monitoring component and/or polluted gas monitoring component.